The Susceptibility of Heat Modification Rubberwood to Powder Post Beetles Attack
This paper investigated the susceptibility of heat modification rubberwood attacked by powder-post beetles in Hainan Province.The results indicated that the rubberwood which was not treatmented with boric acid or borax was attacked by powder-post beetles after one year.While three years later,the heat treatment rubberwood at 185 ℃/3 h and 215 ℃/3 h was not attacked under the natural environment in Hainan.The starch and sucrose content of fresh rubberwood was 6.69% and 9.96%,while they were significantly reduced after high-temperature thermal modofication.The starch and sucrose content was 1.03% and 0.67% after 3 h thermal modification at 200 ℃.
heat modificationrubberwoodpowder post beetlesstarchsucrose